Sheet-delivery apparatus for use on printing machines



' A. W. RANGER April 17,-1-928. l

A. W. RANGER SHEET DELVERY APPRATUSl FOR USE ON PRINTING MACHINES FiledJan. 5. 192.7

' 8/ sheets-sheet 2 /A/VE/V 7-012. f' 14./ fan/65,8,

Apri11'7, 1928.] 1,,866,246 A. W. RANGER SHEET DELIVERY APPARATUS FORUSEON PRINTING MACHINES Filed Jan. 5. 1927- 8 SheetS-Sheet 3 //Vl/E/V7-012.

Ap'l

A. w. RANGER SHEET DELIVERY APPARATUS FOR USE ON PRINTING MACHINES 8sheets-sneet 4 Filed Jan. 5. 1927 Fig.

/A/z/E/vraz 4 April-17,19%. '1,868,246

A'. W. RANGER SHEET DELIVERY APPARATUS FOR USE ON PRINTING MGHINES FiledJan. 5. 1927 8 sheetvs-sheet v5 April 17, 1928. f 1,888,246

` A. W. RANGER SHEET DELIVERY APPARATUS FOR USE ON PRINTING MACHINESFiled Jan. 57. 1927 8 Sheets-Sheet' 6 April '17, 1928.-

A. w. RANGz-:R I SHEET DELIVERY APPARATUS FOR USE ONPRINTIG MACHINES v8sheets-shet 7 Filed Janl 5. 1927 8 :meets-Sheet 8 A. w. RANGR Filed Jan.s. 1927 www SHEET DELIVERY APPARATUS FOR USB ON PRINTING MACHINES Ap17,l 1928.

I c quent-l'y transferred by overcome these tion` the grippers thecylinder (impression be) without making Ptented Apr. 17, 1928.

` items-f UNITED MM* emma winem .aAGERi ee: miewa eastern iSEETfDELiVERX APARMUS. rue

In printing presses having impression cylinders (for example flat bedmachines) or-blanket cylinders (off-set machines) and l.whether thesemachines have either' stop cylinders or continuously rotat-ingcylinders, there has been a long 'felt demand for a vsheet deliveryapparatus which will operate without any rubbing contact or relativecontact movem'ent between either side of'the Sheet 'andfixed or movingparts of the apparatus likely to cause smutting lor smear-r` ing; and,moreover, which will also lallow the freshly printed surface ofthesheetl to be exposed'long enough to allow the ink to set or'partially` dry. i

' In' spite of very many suggestion's and attempts' in practice to meetthese requirements no satisfactory" solution has hitherto been foundeven though known proposals have been made to take' off' the sheetsfront theimpression cylinder by so that rotary grippers anism'to thepiling table.

The objectpof the present. invention is to has additional advantages intheir attendant disadthe sheet from cylinder or blanketcylinder as thecase may rubbing contact with any. part, and a support in the form of aroller blind or apron the sheet by unrolling below the sheet so as toavoid rubbingcontact e. without relative sliding motion between supportand sheet) and a reciprocatory ta1)e`ca1'rier is.

adapted to co-operate with .said support so.

that saidl supportrolls upV andrelinquishes the sheet at the. same timethat the.tapes of the carrier travel relatively' to their rollers toreceive th'esheetV without rubbing: con;-

Vthe'sh'eet is suspended and subsc-v .mtermediary mechi difficulties andmoreover the i It enables'jl the sheets to be,

thev use of fiyer drums` is .adapted to receive.

Use o'N ram'rmenncnrnnsj 5., 1927, serial no. 159,187, amigivn GreatBriana January 8, lesie*l` tact (or relative sliding motion-)"betweenfthe tapes', sald carrfier being the Sheet and adapted1 byV subsequentr-e'ciprocati'on-v to discharge' the shee't to the piling'y table. i

The tape Garnier moreover.` i i adapted toV efi'ect a, pl'urality foredischarging each sh'eetl whereby the ,freshl'y vprin off'strokes beonto' the.` pile sufii'ciently to effect setting-.or partiall' dry-- ingofl the inkbefore the sheet isl'deposited;`

on `"the vpile.

F'urther, means are provided tov enable the operation` of; the.tapeslof'` theV recipr'ocatory to be regulated'- to su'it differentsi-z'esl i of Sheet. e

Inthe accompan'ying drawings- Figurel is a1sidesectionalf eleva'tion andFigure 2 isV a' plan i Figure iis a side view o f grippfermech-` anismon ay Ilarger scale.l f

' Figures 4:. and 5 are 1 side' .ele-vations illus-` tratingmechanismfor controlling the travel of the tapes'or the like'of'the`recip'rocatory carrier.

i ted ysurface of eachv sheet Iis exposedf' to the 'action ofV the air'w illustrating one Vforin of `the invention applied to alflatb'ed stop.cylinder `or Wharfedale machine. i

gn 'is 'preferably Figures' 6 to lOiare-diagram's illustrating'succes'sive stepsl in the operation i of the delivery mechanismshown inFigures 1` 'and`v2.v i e Figure 11` continental or'over'f'eedtype. i r

`*Figure 11a is'a-side view of'an alternative forml ofl driyingmechanismVV for` the grip'pers.. I lfl`figu'i'es1l 12 and 13' are,respectively, a sidesectional elfevation` and a plan illustrating theprincipal i invention suitable. for' application; to a twoi eitherfiat-bed' 'partsfiof anotherform of the revolution cylinder machine, or`off-set.

is .a side' sectional felevationjih lustrating anapplcation'of thein'vention`V to a fiat`-bed 'stop' cylinder, machine 'of the -]3`ig u-re14A is ajsectional elevation illusi tra'tin'g mechanism 'foryautomatically dis-" engaging the' drivin'g gear Ywhen) the deliveryappa-ratus is rai'sedfor makingready.

Figures 15 and 163ar e,,.re`spectively, a side sectional" elevationandav plan `-of-the form of the i'nven'tfion shown in applied to vsufiicient' parts of the machine being ,indicated to 'renderf'thedescription clear; v i

` Referring to Figuresl andr 2, 1 represents the impression cylinder,-

Figures 12 and 13 av two-revolution machine,"' only 2 is the frame ofthe. w

delivery apparatus, the side members of which are channelled sections toact as guides for the reciprocatory carrier and the roller of the apronsupport. Two levers 3, one on each side of the frame, are provided witha cross bar 77 fitted with grippers 4. The levers 3 are mounted onacross-shaft 5 which .is carried in bearings on the frame 2. The shaft 5is oscillated by a cam 6 on a cam shaft `7. The cam 6 enga-ges with aroller 20 on a rocking` lever 21 which is pivoted at 22 and is connectedby a rod 23 to, a Crank 24 ion the shaft 5.

Thegrippers 4 may be of any suitable construction well known in the art,for instance, as shown they may comprise spring steel fingersco-operating with similar fingers 76 (Figure 3) secured to a bar. (7'fixed on the levers 3.

VVhen the levers 3 are moved down to the impression cylinder l a springpawl 7 8, fixed to the bar 77, slides off the end of a pivoted latchblock 78' so that the bar 77 is partly rotated to open the grippers. Thegrippers snap into and are heldin the open position by a spring 7 9which is secured at one end to one of the levers 3 and at the other endto a rod 80 pivotally connected to a crank 81 on the bar 77. -W'hen therod 80 moves over the aXis of the bar, namely tol one side or other ofthe dead centre of the crank 81, the spring tends to pull and to holdthe crank to that side.

The open grippers thus descend ready to grip a sheet on the impressioncylinder, entering` the nsual gap therein. A. reller 82 on alever 83,pivoted at 84 to a suitable support, runs on a cam track 85 in thecylinder 1.

TvVhen a sheet has entered the open grippers, the lever 83 is raised,and engaging' with a roller 80 on a crank 87 on the bar 72', partlyrotates the bar, so that the grippers close with a snap on to the paperSheet under the action of the snring 79. The .levers 3 then rise andcarry the sheet away from the cylinder l. The spring pawl 78 slides pastthe latch block 7 8' which yields against the action of a spring' 88 andallows the pawl 78 to pass into engageinent 'with its upper end withoutopening);` the grippers so that the Sheet, is held until the levers 3start to descend again. a

ldlh'en the Sheet has been so ."aised and is held suspended by thegripiijers (Figure (i) a support or apron of the known roller blindtype, coinprising for instance tapes or an apron 9 secured to a bar 10(Figures l and 2.).and wound on a roller ll, moves forward so thattheroller 11 meets the underside of the suspended sheet, the bar 10,being, if desired,'1nounted tolslide rearwardly hereinafter describedand for the pnrpose set forth in connection with Figure 11. The apron 9,howcwvrinis' at this instant nnwrzqaping so that it is unrolled, or laidout as it were,

nn (U) 1,eee,246

horizontally below the sheet which is deposited upon it without anyrelative sliding movement between it and the Sheet, whereby rnbbing ofthe underside of the sheet (and therefore of the previous print-- ing inthe case of perfecting) is =avoided. The transfer of the Sheet may beeffected in this example, in the same or a similar manner to thatdescribed in connection with Figure 11.

The roller 11 is reciprocated by any suitable means for example by a cam32 on the cam shaft 7 engaging with a roller 34 on.

a slotted slide sliding on the shaft- 7 and connected by a rod 35 to alever 30 on a shaft 37. Lerers 38 on the shaft 37 connected by rods 39to the ends of the blind roller ll. The several stages in theseOperations are indicated in Figures 6 to 10 hereinaftermore particularlyreferred to.

A reciprocatory endless tape carrier 40 comprising tapes 41 and rollers42 and 43 monnted in a frame 40' reciprocated by a cani 13 'acting on aroller 23' on a rocking lever 26 which'is pivoted at 22 and is connectedby a rod 27 to a lever 28 on a shaft 29.v Levers 30 on the two ends ofthe shaft 29 are connected by rods 31 to the ends of the tape roller 42.w

Means are provided to effect a travelling` rnotion of the tapes 41 overthe rollers 42, 43, under certain conditions when the endless tapecarrier is reciprocated. Suitable means are indicated in Figures 4 and5. 4

i Two sproekets mounted on'the ends of the rollers 42, 43, are connectedby an endless chain 46. A detent 45 pivoted on a. stationary support 89engag'es with the chain. TVhen the carrier moves in a direction awayfrom the impression cylinder, nainely, during the outward stroke, thedetent 45, slips on the Chain 40 and so far as this detent 45 isconcerned no travelling motion is imparted toA the tapes 41 over ltheirrollers 42. 43. On the inward stroke of the carrier the detent 45penetrates a link :in 'the chain until arrested by a stop 4.7' and thisholds the chain so that the rollers 42, 43, are rotated to travel thetapes 41.

As explained herein'after, for sheets of a certain size the travel ofthe tapes 4`l efl"ec'l:ed by the detent 45 n'lav be sutl'icient and thetapes do not travel over their rollcrs durii'lr the onl'ward stroke ofthe carrier.v but with narrow shcets it may be necessary to provide foradditional travel and this is effected by auxiliary means such as adetent 47 pivoted at 48 on the stationary support 89 and adapted undercertain conditions to engage with the lower strand of the chain 40during part of the outward stroke of the carrier. The detent 47 has apin 49 for engagement with the upper end of a latch 50 which holde` thedetent in an inoperative position. The latch 50 is pivoted at 88 on 'thestationary part 89 mam and has an arm 90 provided with al pin 91` jnst'as the carrier approaches'thef end, by a springv ,drawn by its spring 93intov `engagement with' the chain 46 b ng arrested by a i stop 110. Anextension 90' of the detent carries a I roller 94fwhich, on the'outwardstrolte of 'the carrier 'is struck bya tappet 95: adjustably. secnredtoa rod 96 fizged onvthe carrier. Byl` these means the detent 47 isdisengaged from thev chain 46 and its pin 49 brought into position forengagement with the latch 50 which, in the m-eantime, has returned toits operative position under the action of a spring''l? as thev springplate tent 47 is held by the latch out of eng-agement with the outwardstroke of the earrier.

The position of the tappet 9 is determined travel required forthe tapesto compensate for the width of the sheets to befdelivered at any time. 4

ratus under consideration having` been de.-

scribed the general operation will be understood 'from the followingdescription with referenceto the diagrams Figures 6 to 10, in which, byway of example, it is assumed that the auxiliarydetent 7 isoperatin'grto compensate for the size of sheet which is ,being`delivered. v .I f In .Fignre 6 a sheet A is `indicated inV a suspendedposition, the apron'9 is shown in full lines in vits' fully wound upposition ready to advance towards the Sheetand the reciprocatory carrier40 is shown in its ez;- treme outward position.

Both. detents 45, 47, are inoperative. The apro'n roller 11 thenadvances towards the sheet as indicated in dotted lines until the apron'o r tapes.

apron 9 is fully unwound or unrolled under thesheet which isv depositedupon it asv indicated iny full lines' in Figurc 7; The carrier and theapron roller then move' inwards as indicated in dotted lines in Figure7, the detentV 4:5 engages with the chain 46l andg the sheet in'du'ecourse being released by the' grippers. During this operation the sheetis gradually relinquished by the apron 9 and the carrier 40,

isreceivedl upon tapes 41` of w the apron,'windinz on lts roller awayfrom the unvderside of the Sheet andt-he tapes 41 v travelling overtheir rollers so that they are, as it were, laid against the undersideof the sheet,.on relative 'sliding motionv or rubbingI action occnringbetween; thev sheet and the 1 liYhen the parts, have reached thepositions indicatedin full lines in Figure S the Sheet is fully1deposiftedon the carrier tapes 41 and. the carrier then begins'to moveoutwards and the auxiliary detent 47 becomes opera- 92.1'eceded, sothatthe dcchain for the remainder of theV 95 on the `VrodV by the amount ofadditional The details of the particular form of appa-l of theimpression the form.

rier tapes.

given a slight'travel over their rollers due i `7a ,during part of theinitial movementiof, the

to the engagement of the auxiliary detent 47 carrier, and the sheet isalso advancedv onthe carrier and at the end ofthe outwar'd stroltethereof is in the position lndicat-ed in Figure 10. On the next inwa'rd.stroke of 'the carriert the sheetfwill 'be advanced along the carrier tothe'position indicated at A','l4igur'e 8. At the end of the followingoutward stroke it will have reached the position indicatcd at'Ar2 Figure10, and during,` the ensuing inward stroke will be Vdelivered on thepilc 111 (Figure- 8) the sheetv moving of? the travelling tapes withoutrelative slidingr or rnbbing action. i po Each sheet is thus taken fromthe impression cylinder and deposited on the ile without sliding orrubbi'ng against any fixed part and moreover it is reciprocated'with thecar.- rier for several strokes sothat the iiik has time to set.. w v

In Figure 11 which indicates the application of4 the invention to aflat-bed4 stopcylinder machine. of the continental or over feed type,the parts corresponding to those hereinbefore described are indicated bysimi-v lar reference numerals,there belng no sub,- stantial differenceinth delivery apparatns except thatit has to be vset farther back andlower relat-ively tothe impression cylinder in order to clear theunderside of the overheadfeed board.

`vconstruction ,of the i `An alternative form of mechanism foroscillating the vgripper llevers 3 especially suitable for high speedwork is indiated in Figure 11zl and comprises af cam 52 on the shaftofthezimpression cylinder 1. engaging With a roller 53 on alever 54which is' pivoted at- 55 and is connected by a rod 56 to a lever'' on 8are'mounted.

i The levers 3 are preferaloly arranged to movevdownwardly to such aneite'nt that the grippers 4 arena'ble to grip and move upwardsmoinentarily with the sheetwhile it :is still held by the cylindergrippers, both sets of grippersmoving `at the same speed. I

' Any usual tape or other device known in the vart can be used at therear and boittom cylinder 1 to prevent the tail end o'fzlarg'e sheetsfrom falling` away from` the impression cylinder and touching the shaft.5 on which the levers VThis form of delivery apparatus as sumed to beprovided with means, for exam-` ple similar to that hereinbeforedescribeth' for e'lfecting the required travel of the car- The operationof the apparatus is similar in both forms., v

The bar '10 may be detachably secured so that in order to,fac1litatemake ready it mayl'iit .support the flyer frame.

be slid rearwardly on the channel frame, thus aifording access to thecylinder.

In the form irst descrihed With reference to Figures 1 to 10 the frame 2of the delivery apparatus is pivoted at the rear on pins or trunnions atpoints 114, Figures 1 and 2, on standards 97, and at the forward end mayrest on uprights 99.

These upric'hts are .those which are usually provided on a Wharfedalemachine to raised up' and down in guide braclrets 98 by a handle 115. Asusual they may be linlred at their lower ends to a counterbalance lcver,these parts not being indicated as they are well known in the art.

The delivery apparatns can thus be readily raised and lowered tofacilitate rapid make ready and as the parts automatically retain theircorrect relationship with the cam shaft 7, the troubles attendant on theusual drum fiyer delivery apparatns are avoided.

In order that the delivery mechanism shall r be put out of actionautomatically when i't is raised for making ready the cam shaft 7 isprovided with a clutch 10a which, when the apparatus is lowered into theoperative position, effects a. driving connection between the cam shaft7 and a clutch member 105 on a driving inembei'such as a sproclret wheel100, and when the apparatus is raised is automatically disengaged. Thesprocket wheel 100 is freely monnted On the cam shaft- 7 and is drivenby a chain 101 from a sprocket 102 on the main driving shaft 103. Theclutch member 1041 slides on a feather 106 on the shaft 7 when a pnlley107 which is loose on the shaft is rotated by a belt 108, one end ofwhich is fixed to the pulley 107 and the other is 2. This rotation ofthepulley winds up a spring 109 having one end fixed to the pulley and theother fixed to a pin 115'. carried by a stationiin'y part of themachine.

A cam ring 213 is mounted on the member 101, so that said member canrotate, but the cam ring' is hold against rotation by suitable meanssuch as a rod 214, screwed into the cam ring' and engaging in a slot 215in the bracket 216 fixed to the end of the frame 2, the slot 215preventii'ig the cam ring' 213 rotating' but permitting` it to be movedaxally with the clutch member .1041. The braclret 216 may also serve tocarry the pin 115' by means of the member 217. The cam ring 213 and thepnlley 107 have co-operating cam snrfaces 112, 113. 1, spring 108'disengages the member 104: from the member 105 when the frame 2 israised, and when the frame is lowered the spring 109 rotates the pulley107 and thus 'engages the two members 1011, 105, against the action ofthe spring' 108'.

As no working parts or obstructions exist above or at the sides of theend of the They can be connected to the framev 1,eee,246

reciprocatory carrier inter-leaving is facilitated. Either form ofdelivery apparatus above described is capable of easy application toexisting machines of the respective types referred to thus renderingsuch machines more etficient in printing high class work.

'A form of delivery apparatus according to the invention suitable for atwo-revolution cylinder printing machine or an ofl'z-set printingmachine, is illustrated in F igures and 18.

This form of delivery appar'atus is shown applied to a two-revolutionmachine in Figni'es 15 and 16.

In Figures 12, 18, 15 and 16, 1 represents the impression cylinder. 58are grippers mounied on a shaft 59 carried in a frame 60 and adapted toco-operate With a bar 60' forming part of this frame. The grippers areintended to grip each shect and draw it from the cylinder 1. Such a formof gripper mechanism is well known in the art and the means for openingand closing the grippers are omitted for' sale of clearness. The frame60 'slides to and fro hor'izontally in `i'uide frames or channels 61.The frame 60 has a cross bar 62 provided with spaced bloclrs to which aset of tapes 611 is secured, the tapes being 'wound on spring roliersmounted on a shaft 66, which is carried in side plates 67 formed on thefor- Ward ends of bars 67' car'rying the Channels 61. The outer ends ofthe bars 67' are pivoted at on the main framincg` 70 of the machine. Thebars 67' with the channels 61 and other parts carried thereby arevperiodically raised and lowered, for a purpose her'einafter explained,by a cam 116 mounted on a shaft 117 which extends across the machine andis supported in bearings in the main frame of the machine.

A lever 118 is mounted on a shaft 119 supported by the main frame of themachine.

The lever 118 has a roller 120 bearing on the cam 116. Levers 132 fixedon the shaft 119 are connected by connecting-rods 121 to the side plates67.

A bar 6,8 provided with spaced blocks 69 is mounted on the stationarymain framing 70 of the machine. v

11 set of tapes 7.1 'is tn'ovided, and these tapes are secui'ed vattheir inner cnds to the biocks 69 and are secnred at their other.

ends and woimd on s|pi.'iug rollers 72 mounted on a sha'tt 78 carried byslide blocks 74- shding' in guides or Channels 75.

The bloclrs 74 are formed as extensions of the frame 4-0' of a'reciprocatory lendless tape carrier 410, comprising rollers 4-2 and 4-3and tapes 11 operated similarly to the carrier -10 hereinbeforedescribed with reference to Figures 1 and 2, except that in the presentexample the carrier 40 is shown to be reciprocated by toothed Wheels 122lnie'shing witlil'i'acks123 formed the 'frame 40' of thecarrier.| rheWheels 122 are 'rotated first in one direction and then in the 'other byVa toothed sector 124 meshingwith The Sector 124 is carried 'pivoted ona shaft 128 carried by the main 127 and at the 'It is to be understood'fori'eciprocating a. sniall pinion 125 o'n the' shaft1120 vof theWheels '122, the sliaft126 being -mounted in the stationary framing 70ofl the machine. by a lever127 fi'aining 70 and having a roller 129 incontact with a ca'm' 130 on the shaft 1-17.

spring `131 is attached'at one end to jthelevei'v other end to the`framing 70. that this inechanisin the carrier 40 is only lan 'exampleas other means for vperfoi'ming the same function .will be obvious to aperson vpersand deposited'onit without any ru lcontact or relative andtapes;

skilled in the In operation gripp'ei's 58 and taken off the impi'essioncylinder 1 a horizontal ;directiono the left of Figures 12 and 15) thetapes 64 being at the sametime drawn out to the left to reeeiv'eth'esheet which is released by the art.

vance together to the right (of Figures .12

' and 15)VV so that the sheet is relinquished byV 'and on subsequent ffirst described with the usual vsible to take off the sheet carrier maybe VThis is important when printing on very the tapes 71 andissimultaneou'sly taken up or received by the tapes 41 of the carrieri'eciprocations thereo eventually deposited on the piling table as inthe form of invention firstv above described. A prolonged test of theform of appai'atus on an old Wharfedale machine has deinonstrated thathigh class three colour printing can be. effected without I fear osmiitting or smearing, and 'with considerably moreease and Safety to theoperator as coinpared with the saine machinev when 4litted drum flyerdelivery inechanism.

In each form of the invention'itiis posat the speed of the impressioncylinder and the delivery of the sheets by the i'eciprocatory endlesstape at` a relatively slower' speed.

avoids shifttliin oi' very thick paper las it ,a high ing oi' bueklingof 'the sheets when speed of printing is adopted.

` I claim I .1. Alsheet delivery apparatus for a printing machineco'mprising means including grippers for gripping a sheetandwithdrawwithout making` rubbing contact withv any part, a support ofthe roller blind type adaptd to unroll and to roll up below said supportjrolls up the sheet is gi'ippedby 'the'- grip- 71 I .At the vend funroll and to roll up below said ing it from the cylinder of the machinesheet so as to :receive Vrespectively y'without' rubbing contact, and a,reciprocatoi'y endless tapev carrier adapted to co-operate with' said.support, s'o'that as said and'lrelin'quishes the sheet 'carrier travelrelatively to said and are ;thereby thetapes o' their i'ollei's iieathVthe sheet to receive contact between said sheet and the tapesof saidcarrier; i

2. Asheet delivery apparatusfor al printiiig machine comprising means;including grippers for grippi'ng a sheet and withdrawing't fromthecylinder of the machine without'making riibbing contact with anypart, a supportl of the roller blind type adapted to'un'roll and tozrollup below said sheet so asto receive and to relinquish .without rubbingcontact, an endless tape carrier, .means for reciproc'aftingl saidcarrier' and 'to relinquish Vit eXtIlled beit without rubbing itrespectively' y i i'elati'vely` v to said support, and means for movingthe ta'pes of said carrier while it moves towards and follows saidVsupport' to enable a sheet relinquished by the support to besiinultaneously` received-by` theV tapes hubbing' contact an of thecarrier, without from' said carrier of to ,effect i the ,discharge -asheet, previously received' by a ;it G from said support, substantiallyzas and for 'the purposehereinbefore set fortl'i. i' a 3; Ash'eetdeliveryfiapp'aratiisfor aiprii'iting` machine co'inprising ;mefia'nsincluding grippers fongrippinga s eet and withdrawingfit fromthecyli'nder of `the'i'nachfii'ie without makingzribbing'; contact,withany ip'art,

adapted to a support of the'rolle blind type sheet so as to' receive andto relinquish it respectively without riibbing contact, an endless tapecarrier, means forv reciprocating'said carrier relat'ively to saidsupport, meansfor moving' the tapes of said carrierwhile it nioves to,-

i: wards and follows said support to enable a sheet relinquished by thesupport to be Simulta-neously received by the tapes of the carrierwithout rubbing contact and to effect the discharge from viouslyreceived byit from said support, and means for fi'eeing the tapes duringthe outward,reciprocatory movement of said carrier sothatl the tapesthereof do not'travel relatively ,to their;v rollers'ldui'iiigthis'outwai'd movemeut, f '4; A sheet delivery apparatiis for a ing machine,4comprising means including grippei's for gripping a` sheet andwithdrawing' it from the cylinder of the machine without making rubbingcontact with any part, a

support of the roller blinditype adapted to iini'oll andto roll. upbelow said sheet so as print-v 'ice said carrier of a sheet pre wcarrier, means for reciprocating said carrier relatively Vto saidsupport, means for moving the tapes of said carrier 'while it moves to-Vwithout rubbing contact i of said wards and follows said support toenable a sheet relinquished by the support to be Simultaneously receivedby the tapes of the carrier without rubbing contact and to effect thedischarge from said carrier of a sheet previously received by it fromsaid support, means for freeing the tapes during the outwardreciprocatory movement of said carrier so that the tapes thereof donottravel relat-ive-ly to their rollers during this outward movemen't,and adjustable means for effect-img a travelling movement of the tapesof the carrier during part of the outward movement thereof. for thepurpose of compensating for sheets of varying width, substantially asand for the purpose hereinbefore set forth.

5. A sheet delivery apparatus for aV printing machine comprising meansincluding grippers for gfgripping;` a sheet and Withdrawing it from thecylinder of the n'lachine without making'rubbing contact with any part,a support of the roller blind type adapted to unroll and' to roll upbelow said sheet so as to receive and to relinquish it respectively anda reciprocatory endless tape carrier adapted to co-operate with'saidsupport, so that as said support rolls up and relinquishes the Sheet thetapes carrier travel relatively to their rollers and are therebyextended beneath the sheet to receive it without rub between said Sheetand thev tapes .of said car 'ier, a frame for supportingithe whole ofthe aforesaid mechanism and for guiding said roller blind supportandcarrier, and a.

bing' contact Leeazac it respectively without rubbmfl' contact and areciprocatory endless tape carrier adapted to co-operate with saidsupport, so that as said support rolls upvand relinquishes the sheet thetapes of said carrier travel relatively to their rollers and are therehyextended heneath the Sheet to receive it Without rubbing contact betweensaid Sheet and the tapes of said carrier, a frame for suliporting thewhole of the aforesaid mechanism and for guiding said roller blindsupport and carrier, and a pivotal support for one end of said frame forthe purpose of allowing saidframe to be raised to facilitate make ready,a driving shaft, and means operable by said shaft for Operating saidgripper means, roller blind supportl and reciprocatory carrier and meansfor disengaging said Operating means from said shaft When said frame ismoved upwardly about its pivotal support.

In testimony 'whereof I have signed my name to this specification.

ARTHUR VVILLARD RANGER.

up below said sheet so as

